ILLUSTRATION7.109n different toys have to be distributed among n children. Findthe number of ways in which these toys can be distributed sothat exactly one child gets no toy.

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Answered: in different toys have to be…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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X={1,2,3,4} find permutations S4=
2. Let, a1 = 3 and for n > 2, an = 2an-1+1, express a, in terms of n. %3D 3. Let, a1 = 3, az = 4 and for n > 3, an = 2am-1+an-2 – 5, express a, in terms of n. %3D
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Teachers want to know which night each week their students are doing most of their homework. Most teachers think that students do homework equally throughout the week. Suppose a random sample of students were collected which shows that the Number of students doing their homework on SUN where 16 Number of students doing their homework on MON where 18 Number of students doing their homework on TUE where 12 Number of students doing their homework on WED where 18 Number of students doing their homework on THR where 8 Number of students doing their homework on FRI where 4 Number of students doing their homework on SAT where 3 What is the Test Statistics to test the Hull Hypothesis that students were doing their homework with equal frequencies (that is, they fit a uniform distribution) against the alternative Hypothesis that students prefer doing their homework on a particular day (that is, they do not fit a uniform distribution)?

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in different toys have to be distributed among n chi the number of ways in which these toys can be dis